Heating-drum.



No. 653,650. Patented July l7, I900.

c. M. BATES & H. c. LUTZ. HEATING DRUM.

(Application filed June 12, 1899.)

(No Model.)

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W l:- I t l Hl| MP ill l iii 10 CHESTER M. BATES AND HORACE O. LUTZ, OF WILKES-BARRE PATENT OFFICE PENNSYLVANIA.

HEATING-DRUM.

SPECIFICATION forming part of Letters Patent No. 653,650, dated July 17, 1900.

Application filed June 12, 1899.

To all whom it may concern:

Be it known that we, CHESTER M. BATES and HORACE O. LUTZ, citizens of the United States, residing at Wilkes-Barr,in the county of Luzerne and State of Pennsylvania, have invented a new and useful Heating-Drum, of which the following is a specification.

This invention is in the nature of means for attachment to heating-stoves, ranges, he. whereby much of the heat usually passing off through the chimney is utilized.

The object of the invention is to provide a simple and cheap drum, to be attached to an ordinary heating or cooking stove or range, which will collect much of the heat nsuallyra diated from the back of a stove and the stovepipe and conduct it to an overhead room, thereby utilizing waste heat to heat the room above.

With this object inview our invention consists in the improved construction, arrangement, and combination of parts hereinafter fully described and afterward specifically pointed out in the appended claims.

In order to enable others skilled in the art to which our' invention most nearly appertains to make and use the same, we will now proceed to describe its construction and operation, reference being had to the accompanying drawings, forming part hereof, in which Figure 1 is a view illustrating the rear portion of a range or cooking-stove with 'a heating-drum constructed in accordance with our invention mounted thereon and arranged to heat an upper room by means of a register in the floor, the drum and upper floor being shown in sections. Fig. 2 is a vertical sectional view illustrating the drum in the room overhead instead of immediately over the stove in the lower room. Fig. 3 is a detail view illustrating the lower part of the drum with a sliding damper thereon.

Like numerals of reference indicate the same parts in all of the figures.

Referring to the drawings by numerals, 4 indicates a range or cooking-stove provided with the usual flanged hole 5 in its top to receive a stovepipe 6. Referring especially to Fig. 1, the pipe'is surmounted by a drum 7, of which 8 is the conical lower end and 9 the flat upper Serial No. 720,215. (No model.)

end, and this drum is surrounded by an outer drum 10, having conicallower end 11 engaging around the pipe 6 and provided with inlet-holes '12 for the entrance of air. The upper end of drum 10, above drum 7, is reduced in diameter, as at 12, and is connected on depending flangesof a register 14,-of any approved construction, inserted in the fioor 15 of an upper room. Asmoke-pipe 16 leads from the upper end of drum 7.through the side of drum 10 and into'the chimney.

17 indicatesa box secured .to the back of thestove 4, having openings 18 in its bottom to admit air and a pipe 19 leading from its top through the conical lower ends 8 and 11 of drums 7 and 10 into the center of drum 7, extending vertically through said drum, as at 20*, and through its flat top 9, discharging into drum 10. l

The pipes 16 and 19 may be provided with dampers, as at 20 and 21, and a cone-damper 22 may be fitted to slide vertically on pipe 6 below the conical lower end 11 of drum 10, said cone-damper being'vertically slotted, as at 23, the slots being below and in line with the parts or lands 24 between the vertical rows of openings 12in conical end 11, so that when the damper is lowered there will be no appreciable obstruction to the riseof hot air from the stove and its entry through holes 12; but when raised, as shown in dotted lines in Fig. 3, the damper will close said openings. This cone-damper might be arranged to turn on conical end 11 with equally good results.

The operation of this construction will be readily understood. The hot air rising from the stove will pass upward through openings 12 into drum 10 and through the register into the upper room. During its passage through the drum 10 it will be further heated by coming into contact with smoke-drum 7 and will be augmented by the hot air passing from box 17-and pipes 19 and 20*, the lastnamed pipe being kept hot by the products of combustion passing through drum 7. By this means the upper room will be heated by the heat usually dissipated in the lower room or wasted entirely.

It may sometimes be deemed preferable to set up the heating-drum in the upper room; In such case the device will be arranged as in Fig. 2, in which the relative arrangement of drums 7 and 10, pipe 20, and smoke-pipe 16 will be the same, the lower Stovepipe 6 passing through floor to conical lower end 8 of drum 7and smoke-pipe 16 into the chimney. The pipe 19, instead of leading down to box 17, as in Fig. 1, will only pass through conical end 8 of drum 7, ending in conical end 11 of drum 10, which conical end may be arranged to taper downward, as in Fig. 1, or inverted to taper upward, as in Fig. 2. The air entering openings 12 and passing up through drum 10 will be heated by contact with smoke-drum 7 andwill be augmented by the air passing through pipe heated by the products of combustion passing through drum 7. The heated airis discharged through openings in the upper end of drum 10.

It will be understood that our invention will be applied, without change of any material account, to all kinds of heating or cooking stoves and that its use will greatly economize in the use of fuel.

Having thus fully described our invention, what we claim as new, and desire to secure by Letters Patent of the United States, is

1. The combination, with an air-drum provided with a perforated conical lower end and an open upper end, of a stovepipe entering the lower conical end of the air-drum, asmokedrum within the air-drum and having a conical lower end engaging the upper end of the Stovepipe, the upper end of the smoke-drum being closed, and a smoke-pipe leading out of the side of the smoke-drum and through the side of the air-drum, substantially as described.

2. The combination with an air-drum provided with a perforated conical lower end and an open upper end, of a-stovepipe entering the lower conical end of the air-drurn,asmokedrum within the air-drum having conical lower end engaging the upper end of the stovepipe, the upper end of the smoke-pipe being closed, an air-box adapted to be secured to the back of the stove and provided with openings in its bottom, an air-pipe leading from the air-box through the conical lower ends of the air-drum and smoke-drum, a pipe, in extension of the last-named pipe, connected thereto,leading up through the smoke-drum and through its closed top and discharging into the air-d rum, substantially as described.

CHESTER M. BATES. HORACE C. LUTZ. \Vitncsses:

FRANCIS OPLINGER, J'AMES 000$. 

